Conditioning device for regulating a gaseous or liquid fluid at a constant target temperature

A conditioning device for regulating a gaseous fluid or a liquid fluid to a constant target temperature, the conditioning device comprising:

• an inlet which is fluidically connected to a supply system;
• an outlet which is fluidically connected to a consumer;
• a first fluid line which is arranged between the inlet and the outlet;
• a heater which is arranged in the first fluid line;
• a second fluid line which is arranged to branch off from the first fluid line upstream of the heater and to open out into the first fluid line downstream of the heater;
• a regulating valve which is arranged either in the first fluid line or in the second fluid line, the regulating valve being configured to regulate a fluid flow;
• a first temperature sensor which is arranged in the first fluid line downstream of where the second fluid line opens out into the first fluid line;
• and
• a check valve which is arranged either in the first fluid line or in the second fluid line in which the regulating valve is not arranged.